Improved railway-car brake



I. WALKER.

Railway Oar Brake. No. 94,530. Patented Sept. 7,1869.

N, PETERS, PHOTO-UTHOGRAPHER, WASHINGTON D C.

tinned swat patent Gtfljiirr.

INGLIS WALKER, OF LYNN, MASSACHUSETTS, ASSIGNOR TO HIM- SELF AND WILLIAMR. BARNARD, OF SAME'PLACE.

Letters Patent No. 94,530, dated September], 1869.

The Schedule referreglto in these Letters Patent and makingpart of thesame.

To whom it may concern Be itknown that I, Inems WALKER, of Lynn,

county of Essex, and State of Massachusetts, have invented a new andimproved Gar-Brake; and do hereby declare th following to be a full,clear, and exact description ereof, reference being bad to theaccompanying drawings, in which'- Figure l is a side elevation of aplatform-car, with my improvements.

Figure 2 is a bottom plan view of a platform-oar, with my improvements.

The object of my invention is to produce means by which cars can bestopped, by the brakes being set,

without the employment of brakemen; and

The nature of my invention consists in devices for setting the brakes bythe reverse action of the engine, thus making 'the whole traincontrolled by the engineer. This is accomplished by the check-movementof the engine. acting as a partiaicheck to the cars, which causes allthe cars to run close together,

and this movement furnishes the power for automati- H is a drum on shaftR, which is perpendicular to the bar D.

Over drum H and on the shaft R is cogged wheel h.

The drum H is loose on the shaft.

Below drum H is toothed gear 9. This gear is at tached to and a part ofthe drum H.

o is a toothed gear, fast on the lower endof shaft R.

S is a cord, running under and ,back of pulley t, and operates to raisedrum H, thus disengaging the teeth of gear g from teeth of gear 0, whichallows ofthe shaft R turning without turning drum H.

m m and 7c are rods orvchains,'which, in connection with levers 'n and'5, form the usual devices for setting brake-shoes.

The bar D projects, at one end of the car, beyond 7 the draw-head b ofthe coupling.

Now, what is the operation of my improvements, which consists in themeans for furnishing power to set the brakes automatically? I The trainbeing in motion, and it being desirable to stop, the engine is reversed;this action causes the cars to bump together, the bar D striking againsta bumper on the preceding'car; the teeth of gear g are engaged withtoothed gear 0; the bar D is pushed back, the cogs a being engaged withcogged wheel I turning shaft R, and with it drum H; this movement windsup chain m, operates levers n and t, by assistance of rods or chains 70and m, and sets the brakeshoes 0 c and c c,- the brakes remain set tillthe train stops, and as long as the cars are up close together, but'assoon as the cars are started, or the pressure removed from bar I), thebrakes are thrown off, and the action of spring E throws bar 1) back toits former position.

If it is desirable to back. the train, it can be done without settingthe brakes, by the engineer drawing cord S, which extends the length ofthe train, from rear. car to engineer, and disengaging gear 9 from gear0, thus the bar D may be pushed back without turning shaft It and drumH. This cordScan be operated from either end of the train, as it isoftendesiredto attach the engine to either end of the train;.

one leading cord is used, with othe s running to wheel t and drum H, oneach car of the train.

By the means described a train can be stopped very quickly, without theaid of a corps of brakemen, the train being under the complete controlofthe engineer at all times, and the benefits arising from having a trainunder the immediate control of the engineer, are too apparent to requirecomment.

What I claim as my invention, and desire to secure by Letters Patent, isr l. The bar D, in combination with shaft It, having -drumH,toothedgears g and o, and wheel h, and spring E, as means for settingthe brakes of a car, op-

erating substantially as set forth- 2. The combination of the abovedevices with cord S, pulley t, and the brakes of a 'car, substantiallyas described. I

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

Witnesses: INGLIS WALKER.

CARROLL D. WRIGHT, Aus'rm S. Howanrn.

